Human Population worksheet - Free Printable

Problem Analysis:

The worksheet focuses on understanding human population growth and its determinants. The task involves filling in blanks with appropriate terms from the provided word bank. Let's solve it step by step.

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Word Bank:

- birthrate
- death rate
- net migration rate
- population growth rate (PGR)
- immigration
- emigration
- zero population growth (ZPG)
- demographic transition

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Solution:

#### 1. Population growth rate (%) = ______ - ______ + ______ / 10
- The formula for calculating the population growth rate is:
\[
\text{Population Growth Rate} = \frac{\text{Births} - \text{Deaths} + \text{Net Migration}}{\text{Total Population}} \times 100
\]
- Therefore, the blanks should be filled as follows:
\[
\text{Population growth rate (\%)} = \frac{\text{birthrate} - \text{death rate} + \text{net migration rate}}{10}
\]

#### 2. A __________ determines how quickly a population size increases or decreases.
- The term that determines the speed of population increase or decrease is the population growth rate (PGR).
- Answer: population growth rate (PGR)

#### 3. Population growth rate can increase due to a rise in __________.
- An increase in the population growth rate can occur due to a rise in the birthrate or an increase in immigration.
- Since the question asks for a single term, we choose the most direct factor: birthrate.
- Answer: birthrate

#### 4. Population growth rate can decrease due to a rise in __________.
- A decrease in the population growth rate can occur due to a rise in the death rate or an increase in emigration.
- Since the question asks for a single term, we choose the most direct factor: death rate.
- Answer: death rate

#### 5. When births plus immigration equals deaths plus emigration for a population, there is no net growth. This is called __________.
- When the number of births plus immigration equals the number of deaths plus emigration, the population is said to have zero population growth (ZPG).
- Answer: zero population growth (ZPG)

#### 6. As a country becomes industrialized, changes occur in its birth and death rates. This is referred to as __________.
- The process of changes in birth and death rates as a country industrializes is known as the demographic transition.
- Answer: demographic transition

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Final Answers:

1. \(\text{Population growth rate (\%)} = \frac{\text{birthrate} - \text{death rate} + \text{net migration rate}}{10}\)
2. population growth rate (PGR)
3. birthrate
4. death rate
5. zero population growth (ZPG)
6. demographic transition

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Boxed Final Answer:

\[
\boxed{
\begin{aligned}
1. & \quad \text{birthrate}, \text{death rate}, \text{net migration rate} \\
2. & \quad \text{population growth rate (PGR)} \\
3. & \quad \text{birthrate} \\
4. & \quad \text{death rate} \\
5. & \quad \text{zero population growth (ZPG)} \\
6. & \quad \text{demographic transition}
\end{aligned}
}
\]